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' <br /> � inaccurate cross-reference and the intent of this technical paper is a clarification of the correct <br /> interpretation. There is also a common tendency to refer to bottomland hardwoods as Type 7 <br /> � wetlands. This is also an inaccurate classif�ication. <br /> The NWI paper maps do not �ise the water regime modifier "E" because i� was difficult to <br /> � interpret from the inherent limitations imposed by the remote sensed imagery. Therefore, most if <br /> not all Type 3 wetlands were given the designation "C". However, the following discussion will <br /> examine and clarify the differences between Circular 39 Types 1, 1L, 2, 3, and 7 and the <br /> � appropriate Cowardin water regime modifying terms. <br /> Circular 39 Wetland Types <br /> ' Type 1/1L—Seasonally Flooded Basins or Flats <br /> Type 1 wetlands are characterized by soil that is covered with water or is waterlogged during <br /> � variable seasonal periods but is usuall_y well drnined during much of the growing seasori (italics <br /> added for emphasis). These wetlands may be found in upland depressions as well as in overflow <br /> bottomlands, i.e. river and stream floodplains. Within floodplains, flooding may occur in late <br /> � fall, winter or spring. In upland contexts, basins or flats may be water filled during heavy rain <br /> events or following spring snow melt. Vegetation types vary greatly according to the season and <br /> the duration of flooding. Included within Type 1 are bottomland hardwoods as well as some <br /> � herbaceous growths. Where the water has receded early in the growing season, smartweeds, fall <br /> panicum, tealgrass, chufa, redroot cypress and weeds (such as marsh elder, ragweed and <br /> cockleburs) are likely to occur. Shallow basins that are submerged only very temporarily usually <br /> � develop little or no wetland vegetation (Shaw and Fredine 1956, p30). <br /> Since Circular 39 was developed for national application, the description of Type 1 wetlands <br /> � covers a broad range of geographic contexts hence the reference to winter flooding. <br /> Cowardin et al (p. 28) in Table 4 describe Type 1 wetlands as seasonally flooded basins or flats, <br /> � wet meadow, bottomland hardwoods and shallow freshwater swamps. The water regimes are <br /> described as temporarily flooded (A) or intermittently flooded (J). <br /> � The Minnesota Department of Natural Resources (DNR), within the regulatory framework of the <br /> Protected Waters and Public Wetlands framework has added the Type 1 L designator to more <br /> clearly clarify the Circular 39 classification method and to allow an accurate distinction to be <br /> � made between bottomland hardwoods, seasonally flooded non-vegetated or herbaceous vegetated <br /> basins and hardwood swamps. The distinction on the basis of hydrology is clear and it was the <br /> intent of the DNR to differentiate between forested bottomland hardwoods and non-forested <br /> � wetlands. <br /> Type 2—Inland Fresh Meadows <br /> � Inland fresh meadows (Type 2) wetlands have soil that is usually without standing water during <br /> most of the growing season but is waterlogged to within at least a few inches of its surface. <br /> Vegetation includes grasses, rushes, sedges, and various broad-leaved plants. In northern <br /> � environments, typical species representatives are carex, rushes, redtop, reedgrasses, <br /> , <br /> ' <br />